121022102111 has 6 divisors (see below), whose sum is σ = 128559811200. Its totient is φ = 113903154656.

The previous prime is 121022102101. The next prime is 121022102119. The reversal of 121022102111 is 111201220121.

It is a de Polignac number, because none of the positive numbers 2^k-121022102111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022102119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 209380511 + ... + 209381088.

It is an arithmetic number, because the mean of its divisors is an integer number (21426635200).

Almost surely, 2^121022102111 is an apocalyptic number.

121022102111 is a deficient number, since it is larger than the sum of its proper divisors (7537709089).

121022102111 is an equidigital number, since it uses as much as digits as its factorization.

121022102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418761633 (or 418761616 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121022102111 its reverse (111201220121), we get a palindrome (232223322232).

The spelling of 121022102111 in words is "one hundred twenty-one billion, twenty-two million, one hundred two thousand, one hundred eleven".